It's not clear to me why, if someone has a vastly incorrect notion about the actual state of the world, we should put much stock in their opinion of how the wor

It's not clear to me why, if someone has a vastly incorrect notion about the actual state of the world, we should put much stock in their opinion of how the world ought to be. The best you could hope for is to infer some directionality. If I think the temperature of a room is 15C, and I say I think it ought to be 10C, but the actual temperature is 25C, then one should probably not infer anything beyond that I want the room cooler.